1.

Two large on conducting plates having surface densities +sigma and -sigma, respectively, are fixed .d. distance apart. A small test charge q of mass m is attached to two non - conducting identical springs of spring constant k as shown in the adjacent fig. The charge q is now released from rest with springs in natural lenght. The q will (neglect gravity)

Answer»

perform SHM with angular frequency `SQRT((2k)/(m))`
perform SHM with AMPLITUDE `(sigmaq)/(2k in_(0))`
not perform SHM, but will have a periodic motion if CHARGE are removed on plates as well as on m
remain stationary

Answer :A::B


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